JP5966182B2 - Horizontal screw silo and cargo carrier equipped with the same - Google Patents

Description

  The present invention relates to a horizontal screw silo that stores cargo such as powder, fine particles, lumps or pellets, and high moisture content, and in particular, a horizontal screw that can be mounted on a cargo carrier ship or integrated as a part of a hull. The present invention relates to a type silo and a cargo carrier equipped with the same.

  In recent years, silos have been proposed in which cargoes such as powders, fine particles, lumps, and high moisture content are efficiently loaded and loaded with high cargo handling efficiency (Patent Documents 1 and 2). Such a silo is installed on land, for example, and can load cargo in a cylindrical cargo hold in a bulked state. For example, application of this to a cargo carrier is also under consideration.

  Usually, a silo having such a cargo hold is provided with a horizontal conveyor or the like as a horizontal transfer device for transferring the cargo in the horizontal direction and putting it into the cargo hold. It is supported by a turning device having a traveling wheel that runs on a rail portion provided on the inner wall surface, and is configured so that cargo can be loaded while turning in the turning direction in the cargo hold. In horizontal screw silos installed in cargo carriers, shaking and tilting occur, so the swiveling device and horizontal transport device will stop when these devices are not handling cargo, as the hull swings and tilts. Even in the middle, a force is generated to turn around the turning center axis.

  In particular, during the navigation of the cargo carrier ship, there is a possibility that the turning device or the horizontal carrier device that is stopped may turn or swing and turn in accordance with the shaking or tilting of the cargo carrier ship that occurs due to the influence of waves or wind. Such turning and swinging turning that occur in the turning device and the horizontal transfer device may cause a mechanical failure of these devices and a center of gravity movement of the cargo carrier.

Japanese Patent Laid-Open No. 7-172586 Japanese Utility Model Publication No.57-52059

  The present invention prevents the turning or swinging turning of the turning turning device or the horizontal transfer device caused by the shaking or tilting of the cargo carrier ship, eliminates the cause of mechanical failure of these devices, and It is an object of the present invention to provide a horizontal screw silo that can prevent the movement of the center of gravity and a cargo carrier equipped with the same.

  A horizontal screw silo according to the present invention includes a cargo hold having a cargo supply port at an upper portion thereof and having a cylindrical wall surface inside to accommodate a powdery, granular, lump or pellet-like cargo, and the interior of the cargo hold. And a swivel device having a swivel frame that is pivotally driven with the central axis of the cargo hold as a swivel axis and whose tip extends toward the wall surface side, and is suspended from the swivel frame with the central axis as a swivel axis It is suspended via a suspending wire, followed by a swiveling motion of the swivel frame and swiveling, and moved up and down by a winding or unwinding operation of the hanging wire, and the cargo is moved to the center of the cargo hold. A screw-type horizontal transport device that transports and collects and collects in the horizontal direction between the wall surfaces, and the cargo collected by the horizontal transport device is placed outside the cargo hold. In the discharging horizontal screw silo, the horizontal conveying device has a screw frame portion that extends from the central axis toward the wall surface and is suspended from the revolving frame, and the revolving device or the horizontal conveying device is It is provided in any one of the turning frame and the screw frame part, and has a fixing device that engages and fixes the fixing part provided in either one of them.

  In one embodiment of the present invention, it has a center column fixedly arranged so as to extend in the vertical direction at the center of the cargo hold, and the cargo from the horizontal transport device is passed through the center column of the cargo hold. Discharge to the outside.

  In one embodiment of the present invention, the fixing device includes a locked part provided to extend to the other of the swivel frame and the screw frame part and the lock part provided to the other. A first clamp arm portion having a pair of arm portions sandwiching the locked portion and a first operating portion for opening and closing the first clamp arm portion, and a distance between the swivel frame and the screw frame portion is When within the predetermined range, the first clamp arm portion is closed.

  In another embodiment of the present invention, the first clamp arm portion or the locked portion includes a guide portion that guides the locked portion between the arm portions at the distal ends of a pair of arm portions.

  In still another embodiment of the present invention, the swiveling device is provided at an end portion on the wall surface side of the swivel frame, and engages with a fixed portion provided on the wall surface side to rotate the swivel frame. A turn restricting device for restricting the rotation.

  In still another embodiment of the present invention, the fixing portion is formed to project at a predetermined location on the wall surface, and the turning restricting device sandwiches the fixing portion at an end portion on the wall surface side of the turning frame. A second clamp arm portion having a second arm portion and a second actuating portion for opening and closing the second clamp arm portion, and sandwiching the fixing portion by the closing operation of the second clamp arm portion. To brake the turning motion of the turning frame.

  In still another embodiment of the present invention, the turning restricting device is configured such that a center line between the arm portions of the second clamp arm portion is directed from the wall surface of the fixed portion toward the center axis during a braking operation. The second clamp arm portion is closed so that it overlaps with the position, and the braking position of the swivel frame is corrected along with the closing operation.

  In still another embodiment of the present invention, the swivel device is provided at an end of the swivel frame on the wall surface side, and is provided on the wall surface side so as to substantially coincide with the swivel center axis of the swivel frame. The vehicle has a driving wheel that rolls on an annular rail portion while supporting a part of the load of the swivel frame, and includes a drive device that swivels the swivel frame. Is a braking device that brakes the turning motion of the turning frame with a pinch interposed therebetween.

  In still another embodiment of the present invention, the turning restricting device includes a third clamp arm portion having a pair of arm portions that sandwich the rail portion, and a third clamp arm portion that opens and closes the third clamp arm portion. An operation portion, and the rail portion is sandwiched by the closing operation of the third clamp arm portion, and the center line between the arm portions of the third clamp arm portion is perpendicular to the center line of the rail portion. It arrange | positions so that it may correspond substantially.

  In still another embodiment of the present invention, the fixing device is provided on either one of the swivel frame and the screw frame part so as to extend toward the other, and on the other. A fourth clamp arm portion having a pair of arm portions for sandwiching the locked portion from the horizontal direction and a fourth operation portion for opening and closing the fourth clamp arm portion, and the swivel frame and the screw frame When the distance between the parts is within a predetermined range, the fourth clamp arm part is closed so that the pair of arm parts extend and sandwich the locked part.

  In still another embodiment of the present invention, the locked portion is arranged to extend in the vertical direction, and the tip end portion of the fourth clamp arm portion is along the longitudinal direction of the swivel frame and the screw frame portion. It is arranged to be able to advance and retreat.

  In still another embodiment of the present invention, the swiveling device is provided at an end portion on the wall surface side of the swivel frame, and engages with a fixed portion provided on the wall surface side to rotate the swivel frame. A turn restricting device for restricting the rotation.

  In still another embodiment of the present invention, the fixing portion is formed to project at a predetermined location on the wall surface, and the turning restricting device sandwiches the fixing portion at an end portion on the wall surface side of the turning frame. And a fifth actuating part for opening and closing the fifth clamp arm part, and the fixing part is sandwiched by the closing operation of the fifth clamp arm part. To brake the turning motion of the turning frame.

  In still another embodiment of the present invention, the turning restricting device is configured such that a center line between the arm portions of the fifth clamp arm portion is directed from the wall surface of the fixed portion toward the center axis during a braking operation. The fifth clamp arm portion is closed so as to overlap with the brake frame, and the braking position of the turning frame is corrected along with the closing operation.

  In still another embodiment of the present invention, the swivel device is provided at an end of the swivel frame on the wall surface side, and is provided on the wall surface side so as to substantially coincide with the swivel center axis of the swivel frame. The vehicle has a driving wheel that rolls on an annular rail portion while supporting a part of the load of the swivel frame, and includes a drive device that swivels the swivel frame. Is a braking device that brakes the turning motion of the turning frame with a pinch interposed therebetween.

  In still another embodiment of the present invention, the turning restricting device includes a sixth clamp arm portion having a pair of arm portions sandwiching the rail portion, and a sixth clamp arm portion that opens and closes the sixth clamp arm portion. An operation portion, and the rail portion is sandwiched by the closing operation of the sixth clamp arm portion, and the center line between the arm portions of the sixth clamp arm portion is perpendicular to the center line of the rail portion. It arrange | positions so that it may correspond substantially.

  A cargo carrier according to the present invention is one in which the horizontal screw silo described above is mounted in a hold.

  In one embodiment of the present invention, the horizontal screw silo described above is mounted in a hold, and the fixing portion is provided on the wall surface at a location that is approximately 90 ° with respect to the traveling direction of the ship.

  According to the present invention, it is possible to prevent the turning or swinging turning of the turning device or the horizontal transfer device that is stopped due to the shaking or tilting of the cargo carrier ship, and to eliminate the cause of mechanical failure of these devices, The center of gravity of the transport ship can be prevented from moving.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing an overall configuration of a cargo carrier ship equipped with a horizontal screw silo according to a first embodiment of the present invention. It is an upper top view of the cargo carrier. It is A-A 'expanded sectional drawing of FIG. It is a partial expanded sectional view of FIG. 3A. It is B-B 'expanded sectional drawing of FIG. 3A. It is C-C 'expanded sectional view of Drawing 3A. It is a partial expansion schematic diagram of the horizontal conveyance apparatus of the horizontal screw type silo. It is D-D 'expanded sectional drawing of FIG. It is sectional drawing which shows the horizontal screw type silo which concerns on the 2nd Embodiment of this invention. It is E-E 'expanded sectional drawing of FIG. FIG. 10 is an enlarged cross-sectional view of FIG. 9 taken along F-F ′. It is G-G 'sectional drawing of FIG. It is operation | movement explanatory drawing of the braking device of the horizontal screw type silo. It is operation | movement explanatory drawing of the brake device. It is sectional drawing which shows the horizontal screw type silo which concerns on the 3rd Embodiment of this invention. It is a partially expanded sectional view of FIG. It is H-H 'sectional drawing of FIG. It is operation | movement explanatory drawing of the frame lock apparatus of the horizontal screw type silo. It is operation | movement explanatory drawing of the same frame lock apparatus. It is sectional drawing which shows a part of horizontal screw type silo which concerns on the 4th Embodiment of this invention. It is I-I 'sectional drawing of FIG. It is operation | movement explanatory drawing of the frame lock apparatus of the horizontal screw type silo. It is sectional drawing which shows a part of horizontal screw type silo which concerns on the 5th Embodiment of this invention. It is J-J 'sectional drawing of FIG.

  Hereinafter, a horizontal screw silo and a cargo carrier equipped with the same according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is a side sectional view showing an overall configuration of a cargo carrier ship equipped with a horizontal screw silo according to a first embodiment of the present invention. 2 is an upper plan view of the cargo carrier, FIG. 3A is an enlarged cross-sectional view taken along line AA ′ of FIG. 2, and FIG. 3B is a partially enlarged cross-sectional view of FIG. 3A. 4 is an enlarged cross-sectional view taken along line BB ′ of FIG. 3A. FIG. 5 is an enlarged cross-sectional view taken along the line CC ′ of FIG. 3A, and FIG. 6 is a partially enlarged schematic view of a horizontal conveying device of a horizontal screw silo. FIG. 7 is an enlarged sectional view taken along the line DD ′ of FIG. As shown in FIG.1 and FIG.2, the cargo carrier 1 is a ship which conveys cargoes, such as powder, a fine grain, a lump shape, a pellet form, and a high moisture content.

  The cargo carrier 1 has a double bottom plate 3 on a bottom bottom plate 2 and an outer skin 4 on a side surface. In addition, the cargo carrier 1 is provided with an upper deck 5 at the top. A bridge 7a is provided on the engine room of the stern portion 7 opposite to the bow portion 6 and the hull front-rear direction. Between the bow portion 6 and the stern portion 7, for example, a plurality of cylindrical horizontal screw silos 10 for accommodating the cargo C are provided. The cargo carrier 1 includes, for example, a mega float or a dredger that does not have a propulsion device.

  As shown in FIG. 3A, the horizontal screw silo 10 includes a cylindrical cargo hold 20 having a cylindrical shape, for example. A center column 14 that extends in the vertical direction is fixed to the center of the cargo hold 20, and a swivel cylinder 11 that extends to the upper center of the cargo hold 20 is provided on the center column 14. A swivel device 39 is provided at an upper position inside the cargo hold 20, and the swivel device 39 includes a swivel frame 30 that swivels together with the swivel cylinder 11 and whose tip extends to the inner wall surface of the cargo hold 20. A horizontal transfer device 40 is suspended from the revolving frame 30. The horizontal conveyance device 40 is controlled in the vertical position and swiveled together with the swivel frame 30 by controlling the amount of suspension of the swivel device 39 from the swivel frame 30 according to the height of the upper surface of the cargo C.

  A supply chute 11c for loading cargo C from above is provided at the upper end of the swivel cylinder 11. A horizontal screw conveyor 12 is disposed below the supply chute 11c, and a telescopic chute 13 that expands and contracts in the vertical direction is disposed at the discharge portion of the horizontal screw conveyor 12. The discharge port of the telescopic chute 13 is located on the end of the horizontal conveyance device 40 on the turning center side.

  The horizontal conveyance device 40 conveys the cargo C received through the supply chute 11c, the horizontal screw conveyor 12, and the telescopic chute 13 toward the outside in the radial direction, and in the process, the cargo C is dispersed in the radial direction on average. . Further, the horizontal transfer device 40 turns in accordance with the turning operation of the turning frame 30 of the turning device 39 and spreads the cargo C uniformly in the circumferential direction. Further, the horizontal conveying device 40 scrapes the cargo C and conveys it inward in the radial direction, and pays it out to the lower center of the cargo hold 20 via the center column 14. The cargo C paid out from the cargo hold 20 is discharged to the outside via the discharge conveyor 18. In addition, when handling the cargo C with low adhesiveness, it is also possible to replace the supply chute 11c and the horizontal screw conveyor 12 with an inclined chute (not shown).

Next, the detail of each part is demonstrated.
The cargo hold 20 includes a cylindrical side wall portion 20a, a bottom surface portion 20b that closes the lower end of the cylindrical side wall portion 20a, and an upper surface portion 20c that closes the upper end of the cylindrical side wall portion 20a. The inner surface of the cylindrical side wall portion 20a forms a cylindrical wall surface 20d. The bottom surface portion 20b and the top surface portion 20c are made of a planar disk-shaped member. The bottom surface portion 20b can be formed horizontally as shown in the figure, but when considering drainage from the cargo hold 20, it is formed so as to have a structure that descends from the outer peripheral side toward the central side. Also good.

  A hole for receiving cargo is formed in the upper surface portion 20c of the horizontal screw silo 10, and the upper end of the swivel cylinder 11 is rotatably attached to the hole portion via the swivel bearing 11a. In the center of the swivel cylinder 11, a supply chute 11c that turns together with the swivel cylinder 11 continuing from the fixed cargo supply port 11b is arranged.

  The center column 14 is connected to the lower end of the swivel cylinder 11 via a bearing 11d. The center column 14 extends from the lower end portion of the swivel cylinder 11 to the bottom surface portion 20b through the center of the cargo hold 20, and is fixed to the bottom surface portion 20b. Although not shown in the drawings, the center column 14 has a receiving portion (receiving port) that is open over substantially the entire circumference and is arranged in multiple stages in the vertical direction. It is configured so that the cargo C being conveyed can be carried into the interior thereof.

  In addition, a cable passage 14c through which various cables such as a power cable and a signal cable are passed is provided at the center of the center column 14, and the various cables passing through the cable passage 14c are provided at the upper portion of the center column 14. It is electrically connected to the cable 14a drawn to the side of the swivel cylinder 11 via the rotating brush 14b, and has a structure capable of supplying power or the like to the swivel device 39 or the like.

  A rail receiving portion 20f protruding intermittently or continuously from the cylindrical wall surface 20d is formed on the upper portion of the cylindrical wall surface 20d of the cylindrical side wall portion 20a. On the upper surface of the rail receiving portion 20f, a rail pedestal portion 20g along the cylindrical wall surface 20d and a rail portion 20e disposed on the upper surface thereof are provided. As shown in FIGS. 3B and 4, the turning frame 30 of the turning device 39 is supported by the turning cylinder 11 at the center, and the end on the cylindrical wall surface 20 d side is a traveling wheel on the rail portion 20 e of the cylindrical wall surface 20 d. 31 is supported.

  For example, the traveling wheel 31 is driven by the drive device 32. The drive device 32 includes, for example, a reduction gear directly connected to the traveling wheel 31 and a driving device that applies a driving force to the traveling wheel 31 via the reduction gear. The drive device 32 is supported by a wheel shaft and is connected to the turning frame 30 by a member (not shown) so that the drive device 32 does not fall down due to a drive reaction force. The traveling wheel 31 is provided on the turning frame 30 so as to be able to roll by a driving device 32 while supporting a part of the load of the turning frame 30.

  Moreover, as shown in FIG.4 and FIG.7, it has a pair of arm part which clamps the rail part 20e to radial direction (horizontal direction) from upper direction in the edge part by the side of the cylindrical wall surface 20d of the turning frame 30 of the turning apparatus 39. At least one rail clamp device 50 (not shown in FIG. 3) having a clamp arm portion 51 and a spring-back hydraulic cylinder 52 that opens and closes the clamp arm portion 51 is disposed.

  The rail clamp device 50 performs a swiveling movement associated with the swinging or tilting of the cargo carrier 1 of the swivel frame 30 of the swivel device 39 during a pause period in which the loading or unloading of the cargo C is not performed mainly by the horizontal screw silo 10. Provided to prevent.

  The clamp arm portion 51 includes a brake shoe 51a attached to the opposite surface side of the tip of the arm portion, a shaft 51b fixed to the housing of the rail clamp device 50, and an end of the arm portion opposite to the brake shoe 51a. The link part 51c which connects a part movably, and the connection pin 51d which connects the center part of the link part 51c, and the front-end | tip of the cylinder rod 52a of the springback type hydraulic cylinder 52 are comprised.

  Although not shown, both ends of the connecting pin 51d are configured to move in a guide groove fixed to the casing of the rail clamp device 50. The groove width of the guide is sufficiently wide at the position of the connecting pin 51d indicated by the solid line in FIG. 7 so that the connecting pin 51d can freely move in the radial direction of the rail portion 20e, and the position indicated by the two-dot chain line in FIG. Then, it is comprised so that it may become slightly larger than the diameter of the connection pin 51d. The guide is fixed to the housing of the rail clamp device 50 so that the center line of the guide groove coincides with the vertical line passing through the center of the fixing pin 52d.

  The spring-back hydraulic cylinder 52 includes the cylinder rod 52a, a piston 52b provided at the end of the cylinder rod 52a, and a spring 52c that moves the piston 52b upward when the hydraulic pressure in the cylinder is released. And a fixing pin 52d for connecting and fixing the cylinder body to the housing of the rail clamp device 50 so as to be slightly swingable in the radial direction.

  The rail clamp device 50 includes a detector that detects the position of the piston 52b and the hydraulic pressure in the cylinder, although not shown. Further, the rail clamp device 50 has a center line between the arm portions of the clamp arm portion 51 (operation center line (a vertical line of the connecting pin 51d)) and a center line of the rail portion 20e in a vertical direction in the radial direction. It arrange | positions at the turning frame 30 so that it may correspond substantially.

  In the rail clamp device 50 configured as described above, as indicated by a two-dot chain line in FIG. 7, when not braked, the hydraulic pressure in the cylinder of the spring-back hydraulic cylinder 52 is increased, and the piston 52b acts as an elastic force of the spring 52c. The cylinder rod 52a is pushed downward from the cylinder body. As a result, the link part 51c is operated so as to be closed in the direction of the connecting pin 51d, and the clamp arm part 51 is opened through the shaft 51b in a direction in which the tip of the arm part is separated from the rail part 20e. Further, the connecting pin 51d is regulated by the above-described guide so that the center line of the rail portion 20e and the vertical center line of the connecting pin 51d substantially coincide with each other, so that the brake shoe 51a does not contact the side surface of the rail portion 20e. .

  On the other hand, as shown by the solid line in FIG. 7, during braking, the hydraulic pressure in the cylinder of the springback hydraulic cylinder 52 is released and lowered, and the piston 52b is pushed upward by the elastic force of the spring 52c, so that the cylinder rod 52a The state is pushed back upward. As a result, the link portion 51c operates so as to open in a direction away from the connecting pin 51d, and the clamp arm portion 51 is closed via the shaft 51b in a direction in which the tip of the arm portion approaches the rail portion 20e. Therefore, the rail 20e is sandwiched by the clamp arm 51 in a state where the brake shoe 51a is in contact with the side surface of the rail 20e. Accordingly, the turning motion of the turning frame 30 of the turning device 39 is braked by these frictional forces.

  During braking, the connecting pin 51d of the clamp arm portion 51 is not restricted from moving in the radial direction, so the action center line of the clamp arm portion 51 and the center line of the rail portion 20e are slightly deviated from each other. Even in this case, there is no fluctuation in the force for clamping the rail portion 20e, and the brake can be satisfactorily braked.

  Further, a winch 35 and a wire sheave 36 for winding the suspension wire 34 are provided on the upper part of the turning frame 30 of the turning device 39. The horizontal transfer device 40 is connected to the suspension wire 34 at a plurality of connection points 34 a and 34 b (see FIG. 5) while maintaining a horizontal state on the revolving frame 30, and is suspended by the suspension wire 34. The swiveling device 39 supports the entire horizontal conveying device 40 so as to be vertically movable by winding or unwinding the suspension wire 34 via the wire sheave 36 of the swivel frame 30 by the winch 35.

  As shown in FIG. 5, the horizontal transport device 40 is attached so as to be capable of turning and moving up and down in the cargo hold 20 via, for example, a turning roller unit 45 disposed around the center column 14 and the suspension wire 34. It has been. The horizontal conveyance device 40 conveys and collects the cargo C in the cargo hold 20 by transferring it horizontally between the central portion of the cargo hold 20 (here, the center column 14) and the cylindrical wall surface 20d. is there. In this example, the turning roller unit 45 is configured to support only the force applied in the horizontal direction with respect to the center column 14, and is thus configured to move freely in the vertical direction.

  The horizontal conveyance device 40 includes a screw frame portion 48 that extends in the radial direction from the central axis of the cargo hold 20 toward the cylindrical wall surface 20d. The screw frame part 48 is integrally joined to the turning roller unit 45, for example. The screw frame portion 48 supports a pair of horizontal screws 41 and 42 that extend in the longitudinal direction of the horizontal conveying device 40 and are juxtaposed in the short direction for conveying the cargo C in the cargo hold 20 in the horizontal direction. To do.

  Moreover, the screw frame part 48 equips the edge part by the side of the cylindrical wall surface 20d with the drive machines 43 and 44 for driving the horizontal screws 41 and 42. FIG. The driving machines 43 and 44 are further attached to the screw shafts of the horizontal screws 41 and 42, respectively, whereby the screw frame portion 48 receives and drives the overturn reaction force generated when the driving machines 43 and 44 are operated. The machines 43 and 44 are configured not to fall.

  As shown in FIG. 5, the connection points 34 a and 34 b are provided at two locations in the short direction at two locations at both ends in the longitudinal direction of the horizontal conveyance device 40. Specifically, the connection point 34 a is provided at the end of the screw frame portion 48 on the cylindrical wall surface 20 d side, and the connection point 34 b is provided at the end of the screw frame portion 48 on the center column 14 side.

  As shown in FIGS. 5 and 6, the horizontal screw 41 is disposed on the leading side (front side) of the turning direction T during the unloading of the horizontal conveying device 40 indicated by the arrows in the drawing, and the horizontal screw 42 is positioned on the trailing side (front side). It is arranged on the rear side. Each horizontal screw 41, 42 is configured to have a different screw outer diameter so that the screw outer diameter of the horizontal screw 41 is smaller than the screw outer diameter of the horizontal screw 42 in this example. The cargo C is disposed so as to be scraped by a predetermined amount of depth D1 from the upper surface CS of C (see FIG. 6). By forming the screw outer diameters differently as described above, for example, after the horizontal screw 41 scrapes the cargo C shallower than the depth D1, the horizontal screw 42 scrapes the remaining cargo C, The cargo C having a thickness corresponding to the fixed depth D1 can be scraped off. Moreover, even if the horizontal screws 41 and 42 having the same screw outer diameter are provided and the mounting height of the shaft center is adjusted, the same effect can be obtained.

  The horizontal screws 41 and 42 of the horizontal conveying device 40 convey the cargo C in the horizontal direction between the center of the cargo hold 20 and the cylindrical wall surface 20d, and perform dispersion, dispersion, collection and collection. These are driven by the driving machines 43 and 44 so as to rotate in opposite directions. Each horizontal screw 41, 42 is configured such that, for example, the cargo C moves to the cylindrical wall surface 20d side in the forward rotation, and the cargo C moves to the center column 14 side in the reverse rotation.

  The telescopic chute 13 supplies the cargo C from the horizontal screw conveyor 12 to the horizontal conveying device 40 by free fall (lowering) of the cargo C, and expands and contracts as the horizontal conveying device 40 moves up and down. It is configured as follows. The horizontal screw conveyor 12 turns with the turning of the turning frame 30, and one end side of the horizontal screw conveyor 12 is arranged below the supply chute 11 c and the other end side is arranged above the telescopic chute 13.

  The lower end of the telescopic chute 13 is disposed in the vicinity of the center column 14 between the horizontal screws 41 and 42. Therefore, the telescopic chute 13 plays the role of a feeder for reliably dropping the cargo C onto the horizontal transport device 40 that turns the cargo C during loading.

  Further, as shown in FIG. 3A, as a loading and unloading facility outside the horizontal screw silo 10, a discharge conveyor 18 that is horizontally transported with one end side disposed below the discharge port 29 of the center column 14, and the discharge conveyor 18 is provided with an upward conveying device 8 (see FIG. 1) for conveying the cargo C upward from the other end side of 18. The unloading facility is configured to include an upper horizontal transport device provided on the upper deck 5, a connection transport device 8a (see FIG. 1) connected to the land-side cargo handling facility, etc. Is done.

  The discharge conveyor 18 is configured by, for example, a screw conveyor or a belt conveyor. The upward conveying device 8 is a device that conveys the cargo C conveyed by the discharge conveyor 18 onto, for example, the upper deck 5, and is a screw conveyor, a belt conveyor, a bucket conveyor or the like arranged in the vertical direction or the diagonally up and down direction. It is comprised and is arrange | positioned at the bow part 6 side, the stern part 7 side, or these center parts.

  The connection transport device 8a is a device that transports the cargo C transported by the upward transport device 8 to the land-side cargo handling facility via the connecting portion, and can transport the cargo C to the land-side cargo handling facility.

  On the other hand, as the cargo handling equipment outside the horizontal screw silo 10, as shown in FIG. 2, one end is connected to the distribution device 8c connected to the connection conveying device 8b and the other end is the horizontal screw silo 10. The supply device 9 is connected to the cargo supply port 11b. The cargo C conveyed from the land-side cargo handling facility is distributed by the distribution device 8c via the connection conveyance device 8b, and is appropriately distributed and supplied to the horizontal screw silo 10 through each supply device 9.

  The supply device 9 is a device that transports the cargo C supplied from the distribution device 8 c in the horizontal direction and supplies it to the cargo supply port 11 b of each horizontal screw silo 10. The supply pipe 9 is constituted by, for example, a horizontal screw conveyor, a belt conveyor, a bucket conveyor, or the like.

  Here, cargo handling using the horizontal screw silo 10 will be described. The cargo handling includes cargo C, land-side cargo handling equipment, connection transport device 8b, distribution device 8c, supply device 9, cargo supply port 11b at the top of the horizontal screw silo 10, supply chute 11c, horizontal screw conveyor 12, telescopic The cargo handling is accommodated in the cargo hold 20 via the chute 13 and the horizontal conveyance device 40.

  That is, first, when the cargo carrier 1 arrives at the quay of the loading area, the land-side cargo handling facility and the distribution device 8c are connected via the connection transport device 8b by a connection portion (not shown). Next, for example, the hydraulic pressure in the cylinder of the spring back type hydraulic cylinder 52 of the rail clamp device 50 is increased, the piston 52b is pushed downward against the elastic force of the spring 52c, and the cylinder rod 52a is pushed downward from the cylinder body. To be in the state. In this manner, the brake shoe 51a attached to the tip of the clamp arm portion 51 is brought into contact with the side surface of the rail portion 20e, and the braking state is released.

  In this way, before the start of each cargo handling, the braking by the rail clamp device 50 (or a turning frame locking device 60 described later) is released to make the turning device 39 turnable, and for example, the frame locking device 70 described later (or The lock by the frame lock device 80) is released, so that the horizontal transfer device 40 can turn.

  Then, the cargo C transported from the land-side cargo handling facility is supplied to the distribution device 8c via the connection transport device 8b, and provided on the cargo hold 20 of each horizontal screw silo 10 via the supply device 9. Supplied to the cargo supply port 11b.

  The cargo C supplied to the cargo supply port 11 b falls from the supply chute 11 c to the horizontal screw conveyor 12, is transported in the horizontal direction, and is supplied to the telescopic chute 13. The cargo C supplied to the telescopic chute 13 is conveyed to the center column 14 side of the horizontal conveying device 40 by free-falling or the like in the telescopic chute 13.

  The horizontal conveying device 40 moves the cargo C conveyed to the horizontal conveying device 40 from the center column 14 side of the horizontal conveying device 40 to the cylindrical wall surface 20d side by, for example, rotating the horizontal screws 41 and 42 respectively. It is configured to be transported horizontally. In addition, before the start of cargo handling, the horizontal conveyance device 40 is moved to a position that maintains a predetermined height from the lower limit position level in the cargo hold 20 of the preset horizontal conveyance device 40.

  The cargo C transported to the horizontal transport device 40 in such a state is transported horizontally and horizontally transported from the center column 14 side to the cylindrical wall surface 20d side in the vicinity of the horizontal screws 41 and 42 and below the space. It is accommodated sequentially along the device 40. Thus, the cargo C is scattered in the centrifugal direction (radial direction) of the cargo hold 20.

  Then, when the cargo C is leveled and accommodated in the whole area in the centrifugal direction, the driving device 32 of the turning device 39 is operated to roll the traveling wheel 31, and the turning frame 30 is turned by a predetermined angle to be horizontal. The conveying device 40 is moved in the circumferential direction (turning direction T ′ during loading, see arrows in FIGS. 4 and 5), and further, the cargo C is evenly accommodated in one zone in the centrifugal direction. When this process is repeated or continuously performed and the horizontal transport device 40 is rotated 360 ° around the central axis P to make one round, the leveling and loading of the cargo C at that height is completed. In the loading / unloading operation, the cargo C is evenly dispersed and accommodated in the circumferential direction of the cargo hold 20 by the turning of the horizontal transfer device 40 accompanying the turning of the turning frame 30 of the turning device 39.

  Then, after the leveling and accommodation of the cargo C for one round in the cylindrical cargo hold 20 is completed, the suspension wire 34 that suspends the horizontal transfer device 40 is wound up by the winch 35 provided on the revolving frame 30. The height of the horizontal transfer device 40 is increased by a predetermined amount. Thereafter, when the leveling and accommodation of the cargo C for one round at this height is completed, the height of the horizontal conveying device 40 is further increased by a predetermined amount.

  By repeating such processing, the cargo C is leveled and accommodated from directly above the bottom surface portion 20b to a fully loaded state, whereby the cargo C is fully loaded in the cargo hold 20 and the loading operation is completed. The loading of cargo C into the cargo hold 20 is performed simultaneously or sequentially by the horizontal screw silos 10 so that all horizontal screw silos 10 are full of cargo C. Thereby, the loading of the cargo C onto the horizontal screw silo 10 is completed.

  When the loading / unloading is completed, an operation reverse to the above-described operation is performed to brake the turning device 39 by the rail clamp device 50 (or a turning frame locking device 60 described later) to make the turning impossible, and for example, The horizontal transfer device 40 is locked by a frame lock device 70 (or a frame lock device 80), which will be described later, so that it cannot turn.

  Next, unloading using the horizontal screw silo 10 will be described. Note that the contents already described in the cargo handling are omitted. The unloader handles the cargo C loaded in the cargo hold 20 of the horizontal screw silo 10 with the horizontal transport device 40, the center column 14, the discharge conveyor 18, the upward transport device 8, the horizontal transport device on the upper deck 5, and It is a cargo handling that unloads to the land-side cargo handling facility via the connecting transport device 8a and the like.

  That is, first, when the cargo carrier 1 arrives at the quay of the landing site, the land-side cargo handling facility and the connection transport device 8a are connected by the connecting portion. Next, the brake is released (unlocked) as described above, and the horizontal screws 41 and 42 of the horizontal transfer device 40 are rotated in the reverse direction from the loading operation, and then the horizontal transfer is performed from the swing frame 30 of the swing device 39. The hanging wire 34 that suspends the device 40 is fed out by the winch 35, and the horizontal conveying device 40 is moved so that the height thereof becomes a predetermined relative height with respect to the upper surface CS of the cargo C that is mounted. Let

  Next, the driving device 32 of the turning device 39 is operated to roll the traveling wheel 31 in the reverse rotation to that during loading, the turning frame 30 is turned at a predetermined turning speed, and the horizontal transfer device 40 is loaded. By turning in the turning direction T opposite to the time, the cargo C is horizontally conveyed while scraping from the cylindrical wall surface 20d side of the horizontal conveying device 40 to the center column 14 side. By this horizontal conveyance, the cargo C is carried into the center column 14 from the discharge end of the horizontal conveyance device 40 through the receiving portion of the center column 14, falls inside, and is conveyed to the lower part of the center column 14.

  When the turning frame 30 is continuously turned and the horizontal transfer device 40 is turned 360 ° around the central axis P, the transfer of the cargo C to the center column 14 at that height is completed. In the unloading work, the cargo C is collected from the cargo hold 20 to the center column 14 by the turning of the horizontal transfer device 40 accompanying the turning of the turning device 39. In addition, the amount of unloading per hour can be controlled by controlling the turning speed of the turning frame 30.

  When the collection of the cargo C for one round in the cylindrical cargo hold 20 is completed, the suspension wire 34 that suspends the horizontal conveyance device 40 is drawn out from the revolving frame 30 of the revolving device 39, and the horizontal conveying device 40 Decrease the height by a predetermined amount. Thereafter, when the collection of the cargo C for one round at this height is completed, the height of the horizontal conveying device 40 is further lowered by a predetermined amount.

  By repeating such processing, the cargo C is collected in the cargo hold 20 from the top surface CS of the fully loaded cargo C to directly above the bottom surface portion 20b, so that the cargo C in the cargo hold 20 is placed in the center column 14. Collect and leave empty. The cargo C transported to the lower part of the center column 14 and discharged from the discharge port 29 is transported in the horizontal direction by the discharge conveyor 18 disposed below the horizontal screw silo 10.

  And the cargo C conveyed by this discharge conveyor 18 is conveyed on the upper deck 5 by the upper direction conveying apparatus 8, and the land side via the horizontal conveying apparatus on the upper deck 5, the conveying apparatus 8a for connection, and a connection part. Transport to cargo handling equipment. This is performed for all of the cargo C in the cargo hold 20 of each horizontal screw silo 10. Thereby, the unloading of the horizontal screw silo 10 is completed. When the unloading is completed, the turning device 39 is braked as described above, and the horizontal transfer device 40 is locked so that the turning is impossible.

  For example, in the horizontal screw silo 10 having a structure that does not have the center column 14 that is configured to handle a cargo that can be discharged by natural fall (descent) by forming a free rest surface, the screw frame portion 48 includes A roller (not shown) is configured so as to reach the vicinity of the cylindrical wall surface 20d on the side opposite to the turning center and at the end of the screw frame portion 48 of the horizontal conveying device 40 on the cylindrical wall surface 20d side. ), A vibration dispensing device (not shown) is provided immediately below the discharge port 29, and the bottom surface 20b is inclined so that the surface of the bottom surface 20b is inclined from the outer peripheral side of the cargo hold 20 toward the center. It is possible to realize a structure in which the conveyance device 40 can be stably rotated to receive and discharge the cargo C.

  Thus, in the cargo carrier 1 provided with the horizontal screw silo 10 according to the first embodiment of the present invention, the turning device 39 brakes and stops the turning operation of the turning frame 30 by the rail clamp device 50. The swivel frame 30 can be reliably stopped, and the swiveling device 39 and the horizontal transfer device 40 that are stopped and caused by the swinging or tilting of the cargo carrier 1 can be prevented from turning or swinging. Therefore, the cause of the mechanical failure of these devices 39 and 40 can be eliminated, and the center of gravity movement of the cargo carrier 1 can be prevented. According to this configuration, for example, even if the cargo carrier 1 is tilted or shaken and the upper surface of the rail portion 20e is tilted, the rail clamp device 50 and the turning frame 30 and the traveling wheel 31 do not slip. The horizontal conveyance device 40 can be reliably stopped.

[Second Embodiment]
FIG. 8 is a cross-sectional view showing a horizontal screw silo according to the second embodiment of the present invention. 9 is an enlarged sectional view taken along the line EE ′ of FIG. 8, FIG. 10 is an enlarged sectional view of the line FF ′ of FIG. 9, and FIG. 11 is a sectional view taken along the line GG ′ of FIG. 12 and 13 are operation explanatory views of the braking device for the horizontal screw silo. In the following description, the same reference numerals are assigned to portions that overlap the already described portions, and description thereof is omitted.

  As shown in FIGS. 8 to 11, the horizontal screw silo 10 </ b> A according to the second embodiment is a substitute for the rail clamp device 50 employed in the turning device 39 of the horizontal screw silo 10 according to the first embodiment. Further, as a braking device for braking the turning operation of the turning frame 30, a turning frame locking device 60 is provided, and at least one locking hardware 69 for engaging the turning frame locking device 60 is provided on the cylindrical wall surface 20 d. This is different from the horizontal screw silo 10 according to the first embodiment.

  Specifically, the locking hardware 69 is made of, for example, a rectangular metal member that is provided at the same level position in the vertical direction as the rail receiving portion 20f of the cylindrical wall surface 20d and protrudes in the central axis direction. The lock hardware 69 is joined to the cylindrical wall surface 20d with sufficient strength. The revolving frame locking device 60 includes a clamp arm portion 61 having a pair of arm portions that sandwich the lock hardware 69 in the horizontal direction from the central axis direction toward the radial outer side, and a spring back hydraulic pressure that opens and closes the clamp arm portion 61. And a cylinder 62.

  The clamp arm portion 61 includes a roller 61a that is horizontally provided at the tip of the arm portion, a shaft 61b that is fixed to the casing of the turning frame locking device 60, and an arm portion on the opposite side of the roller 61a. The link part 61c which connects an end part movably, and the connection pin 61d which connects the center part of the link part 61c and the front-end | tip of the cylinder rod 62a of the springback type hydraulic cylinder 62 are comprised.

  Similar to the spring-back hydraulic cylinder 52 described above, the spring-back hydraulic cylinder 62 includes a cylinder rod 62a, a piston 62b, a spring 62c, and a fixed pin 62d. In addition, the turning frame locking device 60 includes a detector similar to the rail clamp device 50, and further, stoppers 63a and 63b of the second clamp arm portion 61 are provided in the housing.

  As shown in FIG. 12, the swing frame locking device 60 configured in this way increases the hydraulic pressure in the cylinder of the springback type hydraulic cylinder 62 during non-braking, and the piston 62b is pushed in the direction of the cylindrical wall surface 20d. Thus, the cylinder rod 62a is pushed out to the locking hardware 69 side against the elastic force of the spring 62c. As a result, the link portions 61c are moved so as to close to each other, and the clamp arm portion 61 is opened via the shaft 61b so that the roller 61a at the tip of the arm portion is separated from the cylindrical wall surface 20d. Therefore, the roller 61a and the side surface of the locking hardware 69 are not in contact with each other.

  In this open state, the turning frame locking device 60 is positioned between the end surface on the central axis side of the locking hardware 69 so that the roller 61a does not contact the locking hardware 69 during the turning operation of the turning frame 30. The roller 61a is opened so as to be positioned with a sufficient distance CL. At this time, all of the clamp arm portions 61 are located at the open limit position. The stopper 63a is provided to prevent the clamp arm portion 61 from opening excessively. Preferably, either one of the clamp arm portions 61 contacts the stopper 63a, and the other has a slight gap with the stopper 63a. Arranged to be located.

  On the other hand, as shown in FIG. 11, at the time of braking, the hydraulic pressure in the cylinder of the springback type hydraulic cylinder 62 is released and lowered, and the piston 62b is pushed in the direction of the center column 14 by the elastic force of the spring 62c. 62a is pushed back in a direction away from the lock hardware 69. As a result, the link part 61c operates so as to open in a direction away from each other, and the clamp arm part 61 is closed via the shaft 61b so that the roller 61a at the tip of the arm part approaches the cylindrical wall surface 20d. Therefore, the roller 61a and the side surface of the locking hardware 69 come into contact with each other.

  Therefore, the turning motion of the turning frame 30 of the turning device 39 is braked by the turning frame lock device 60. In the closed operation state, one of the clamp arm portions 61 contacts the stopper 63b, and the other contacts the elastic member 63bb provided on the stopper 63b in a contracted state. The elastic member 63bb has an appropriate repulsive force due to contraction, and maintains the reliable contact between the roller 61a and the locking hardware 69 when the closing operation of the turning frame locking device 60 is completed, and the turning frame locking device 60. And a function of minimizing a change in the relative position between the lock hardware 69.

  In the middle of the closing operation, when the radial center line of the cylindrical wall surface 20d of the locking hardware 69 and the center line in the same direction of the turning frame locking device 60 are shifted, 13, the roller 61 a of one of the clamp arm portions 61 is in contact with the side surface of the locking hardware 69.

  However, since the revolving frame locking device 60 operates so as to sandwich the locking hardware 69 evenly between the clamp arm portions 61 with the configuration of each portion as described above, until the center lines substantially coincide with each other due to the elastic force of the spring 62c. The turning frame 30 is turned and stopped in a state as shown in FIG.

  Thereby, the turning frame locking device 60 has a structure capable of slightly turning the turning frame 30 with the closing operation during braking. With such a configuration, it is possible to allow certain errors such as a position detection error of the turning frame 30 and a stop position error due to inertia.

  When the rail clamp device 50 described in the first embodiment is provided together with the turning frame locking device 60, if the braking by the rail clamping device 50 is performed after the turning of the turning frame locking device 60 is completed, More reliable braking is possible. The locking hardware 69 is preferably provided at a position that minimizes the influence on the turning of the turning frame 30 due to the inclination or shaking of the hull. In this case, the locking hardware 69 is approximately 90 ° with respect to the traveling direction of the cargo carrier 1. What is necessary is just to be provided in the position. At the start of each cargo handling, the braking state of the turning frame locking device 60 is released in the same manner as the rail clamp device 50 described in the first embodiment.

[Third Embodiment]
FIG. 14 is a cross-sectional view showing a horizontal screw silo according to a third embodiment of the present invention. 15 is a partially enlarged cross-sectional view of FIG. 14, and FIG. 16 is a HH ′ cross-sectional view of FIG. FIGS. 17 and 18 are explanatory diagrams of the operation of the frame locking device of the horizontal screw silo.

  As shown in FIGS. 14-16, the horizontal screw type silo 10B which concerns on 3rd Embodiment is the rotation frame 30 of the turning apparatus 39 of the horizontal screw type silo 10A which concerns on 2nd Embodiment, and the horizontal conveyance apparatus 40. Unlike the horizontal screw silo 10A according to the second embodiment, the frame locking device 70 and the locking hardware 79 for locking the screw frame portion 48 to each other are provided in the turning device 39 and the horizontal conveying device 40. Yes.

  Specifically, the lock hardware 79 is provided on the screw frame portion 48 so as to extend in the direction of the turning device 39, and as shown in FIG. An auxiliary support member 79a provided on both sides so as to extend obliquely upward toward the front end of the roller, and a roller provided so that the front end side spreads outward at a predetermined interval in the vicinity of the front end of the lock metal 79 And a guide 79b. The lock metal 79 is joined to the screw frame portion 48 together with the auxiliary support member 79a with sufficient strength.

  On the other hand, the frame lock device 70 is swingably attached to the revolving frame 30 via a fixing pin 72d so as to protrude in the direction of the horizontal conveyance device 40, and includes a clamp arm portion 71 that sandwiches the distal end portion of the lock metal 79. And a spring-back hydraulic cylinder 72 as a third operating part for opening and closing the clamp arm part 71. The frame lock device 70 includes various detectors similarly to the turning frame lock device 60.

  The clamp arm portion 71 includes a roller 71a, a shaft 71b, a link portion 71c, and a connecting pin 71d, similarly to the clamp arm portion 61 described above. The springback hydraulic cylinder 72 includes a cylinder rod 72a, a piston 72b, a spring 72c, and a fixed pin 72d, similarly to the springback hydraulic cylinder 62 described above. The connection pin 71d is provided so as to be movable in the vertical direction (vertical direction) along a guide groove extending in the vertical direction formed in the housing of the frame lock device 70.

  The frame lock device 70 operates to close the clamp arm portion 71 when the distance between the turning frame 30 and the screw frame portion 48 is within a predetermined range, for example. In other words, the frame lock device 70 is locked when the distance between the two is within a range shorter than the distance between the turning frame 30 and the screw frame portion 48 when the cargo C is fully loaded in the cargo hold 20. Operate.

  As shown in FIG. 17, the distance CL2 between the lower end of the roller 71a of the clamp arm portion 71 of the frame locking device 70 and the tip of the locking hardware 79 is filled with the cargo C in the cargo hold 20. When the upper limit sensor for detecting the upper limit position of the horizontal transfer device 40 is operated, the upper position of the horizontal transfer device 40 is further detected, and the upper limit sensor erroneously detects the upper limit position. Even if the screw frame portion 48 of the horizontal conveying device 40 is located at the vertical position where the upper limit sensor (upper limit compensation sensor) for compensation is operated, the minimum necessary distance is maintained.

  In the locking operation, as shown in FIG. 18 from the state shown in FIG. 17, the hanging wire 34 is further wound up by a predetermined distance H by the winch 35, and the lock hardware 79 is clamped between the clamp arm portions 71. The screw frame portion 48 is brought close to the revolving frame 30 so that the front end portion of the rotating frame 30 is located. At this time, the lower ends of the screw blades of the horizontal screws 41 and 42 are separated from the upper surface CS of the cargo C by a predetermined distance.

  Note that the winding of the winch 35 may be controlled based on signals from the upper limit sensor and the upper limit sensor (upper limit compensation sensor) as described above. The horizontal screw silo 10B is set so that it can be wound up as a normal operation until detection by the upper limit sensor is performed.

  If the center line of the locking hardware 79 and the center line of the frame locking device 70 are deviated during the locking operation, the roller 71 a comes into contact with the roller guide 79 b, and the clamp arm portion 71 moves to the locking hardware 79. Since the leading end is guided to a position where it can be clamped, the locking operation can be surely performed even if the positions of the screw frame 48 and the turning frame 30 are slightly shifted.

  As shown in FIG. 16, when the screw frame portion 48 and the turning frame 30 are locked by the frame lock device 70 and the lock hardware 79, the horizontal conveyance device 40 comes into contact with the cargo C as described above. Therefore, the swivel device 39 and the horizontal transfer device 40 are swung to the mooring (locking) position of the swivel frame 30 provided with the lock hardware 69, and the swivel frame lock device 60 is moored at a predetermined position. It is possible to leave.

  For example, after releasing the braking state of the rail clamp device 50 in the first embodiment, the hydraulic pressure in the cylinder of the spring-back hydraulic cylinder 72 of the frame lock device 70 is increased, and the piston 72b is elastic of the spring 72c. The cylinder rod 72a is pushed downward from the cylinder body by being pushed downward against the force. In this way, the roller 71a attached to the tip of the clamp arm portion 71 does not come into contact with the side surface of the lock hardware 79, the winch 35 is operated to feed the suspension wire 34, and the predetermined position from the lock position. The position of the horizontal transfer device 40 is lowered downward by a distance H of the distance H to release the locked state, and the horizontal transfer device 40 can be turned around the turning center. Similarly, when a frame lock device 80 described later is applied, the locked state is released in the same manner.

  The rail clamp device 50 according to the first embodiment and the turning frame lock device 60 according to the second embodiment described above can be applied individually or provided side by side. The same applies to the frame lock device 80 to be provided separately from or alongside the rail clamp device 50 and the turning frame lock device 60. However, in order to ensure safety during navigation of the cargo carrier 1, it is necessary to brake (lock) and release (unlock) the turning device 39 and the horizontal transport device 40 at the same time. .

[Fourth Embodiment]
FIG. 19 is a cross-sectional view showing a part of a horizontal screw silo according to the fourth embodiment of the present invention. FIG. 20 is a cross-sectional view taken along the line II ′ of FIG. 19, and FIG.

  As shown in FIGS. 19 to 21, the horizontal screw silo according to the fourth embodiment is different from the third embodiment in that the configuration of the clamp arm portion of the frame locking device 80 and the configuration of the locking hardware 89 are different. This is different from the horizontal screw silo. Specifically, this is as follows.

  That is, the locking hardware 89 is formed so as to extend from the screw frame portion 48 in the direction of the turning device 39, and to extend from the stay 89b in the radial direction toward the cylindrical wall surface 20d. The rod-shaped sandwiched portion 89a is joined to the screw frame portion 48 with sufficient strength.

  The frame lock device 80 includes a housing 88 attached to the revolving frame 30 so as to protrude in the direction of the horizontal conveyance device 40, and includes a clamp arm portion 81 that sandwiches a clamped portion 89 a of a lock hardware 89, and a clamp arm portion 81. A spring-back hydraulic cylinder 82 that opens and closes is provided.

  The clamp arm portion 81 has an L-shape that is bent downward when the distal end portion 81a of the arm portion is crossed in a direction in which the clamped portion 89a is sandwiched when the clamp arm portion 81 is in the open state. The portion in contact with the surface is formed with an inclined surface 81aa that spreads downward in a C shape. The maximum interval between the inclined surfaces 81aa is set to be sufficiently larger than the maximum cross-sectional diameter of the sandwiched portion 89a.

  Other than the clamp arm portion 71, the clamp arm portion 81 includes a shaft 81b, a link portion 81c, and a connecting pin 81d. The spring-back hydraulic cylinder 82 includes a cylinder rod 82a, a piston 82b, a spring 82c, and a fixed pin 82d, as described above.

  As shown in FIG. 20, the frame lock device 80 configured as described above has a predetermined distance CLr between the upper end of the clamped portion 89a of the lock hardware 89 and the lower end of the outer periphery of the shaft 81b of the frame lock device 80 when locked. It is provided to maintain. Further, as shown in FIG. 21, when the screw frame portion 48 of the horizontal transport device 40 is not locked at the vertical position where the upper limit sensor is operated, the lower end of the outer periphery of the shaft 81b of the frame lock device 80 and the locking hardware 89 are provided. The distance between the upper end of the sandwiched portion 89a is expressed by the sum (CLr + Hm) of a predetermined distance Hm for winding the suspension wire 34 by the winch 35 and the distance CLr.

  When not locked, the distance CL3 between the lower end of the distal end portion 81a of the clamp arm portion 81 of the frame lock device 80 and the upper end of the clamped portion 89a is the minimum necessary distance even when the distance Hm is zero (0). Is set to be maintained. Further, with such a configuration, the predetermined distance H described in the third embodiment can be set to the horizontal screw 41 without considering various elements resulting from the shape and arrangement of the frame lock device 80 and the lock hardware 89. , 42 and the minimum required distance from the lower end of the screw outer diameter and the upper surface CS of the cargo C can be determined.

  Therefore, since the distance Hm can be shortened as compared with the predetermined distance H according to the third embodiment, the distance from the turning frame 30 to the screw frame portion 48 is related to the third embodiment. And the installation position of the upper limit sensor (upper limit compensation sensor) can be further increased. As a result, since the installation position of the upper limit sensor can be increased, the storage height of the cargo C can be increased, and the amount of cargo loaded in the cargo hold 20 can be increased.

  During the locking operation, the inclined surface 81aa of the distal end portion 81a of the clamp arm portion 81 plays a role of guiding the sandwiched portion 89a between the clamp arm portions 81, similarly to the roller guide 79b described above. Other functions and effects are the same as those according to the third embodiment. Note that the frame lock device 80 and the lock hardware 89 may be provided on the screw frame 48 and the revolving frame 30 in reverse to the above. The same applies to the third embodiment.

[Fifth Embodiment]
FIG. 22 is a sectional view showing a part of a horizontal screw silo according to the fifth embodiment of the present invention. 23 is a cross-sectional view taken along the line JJ ′ of FIG. As shown in FIGS. 22 and 23, the horizontal screw silo according to the fifth embodiment is different from the horizontal screw according to the fourth embodiment in that the arrangement mode of the frame locking device 80 and the shape of the locking hardware 89 are different. It is different from the screw silo.

  Specifically, the locking hardware 89 includes a stay 89b formed so as to extend from the screw frame portion 48 in the direction of the turning device 39 (perpendicular to the longitudinal direction of the screw frame portion 48), and the stay 89b. And a rod-shaped sandwiched portion 89a formed so as to extend in the same direction, and is joined to the screw frame portion 48 with sufficient strength.

  The frame lock device 80 is attached to the revolving frame 30 via the stay 88a so that the longitudinal direction of the casing 88 is along the longitudinal direction of the revolving frame 30, and clamps the sandwiched portion 89a of the locking hardware 89 from the radial direction. The arm portion 81 and a spring-back hydraulic cylinder 82 that opens and closes the clamp arm portion 81 are provided. That is, the frame lock device 80 is attached in a state in which the longitudinal direction of the casing 88 is rotated 90 ° toward the cylindrical wall surface 20d as in the case of the fourth embodiment.

  The shaft 81b, the link portion 81c and the connecting pin 81d of the clamp arm portion 81 and other configurations, the cylinder rod 82a, the piston 82b, the spring 82c, the fixed pin 82d and other configurations of the springback hydraulic cylinder 82 are the fourth embodiment. This is the same as described in the embodiment.

  The frame lock device 80 swivels so that the radial center line substantially coincides with the center line of the swivel frame 30 in the same direction and is positioned closer to the center of the cargo hold 20 than the clamped portion 89a of the locking hardware 89. It is attached to the frame 30.

  As shown in FIG. 23, the frame lock device 80 configured as described above is clamped with the tip of the tip end portion 81a of the clamp arm portion 81 of the frame lock device 80 when the clamp arm portion 81 is in the open state and is not locked. As shown in FIG. 22, the distance CL3 between the outer peripheral surface of the portion 89a is maintained substantially constant even when the vertical distance between the turning frame 30 and the screw frame portion 48 changes.

  Therefore, the distance CL3 can be set to a minimum necessary dimension within a range where the tip of the tip 81a and the outer peripheral surface of the sandwiched portion 89a do not contact each other. Specifically, at the time of locking, the distance between the outer peripheral surface of the clamped portion 89a of the locking hardware 89 and the outer peripheral surface of the shaft 81b of the frame locking device 80 is the same as the distance CLr according to the fourth embodiment. Can be a distance. Further, since the distance CL3 (or the distance CLr) is kept constant, the distance CL3 is changed before the operation of the clamp arm portion 81 from the open state to the closed state as described in the fourth embodiment. No operation or control is required.

  With such a configuration, the predetermined distance H described in the third embodiment is changed to various elements resulting from the shape and arrangement of the frame lock device 80 and the lock hardware 89 as in the fourth embodiment. Can be determined only by a minimum necessary distance from the lower end of the outer diameter of the horizontal screws 41 and 42 and the upper surface CS of the cargo C.

  According to the frame lock device 80 and the lock hardware 89 configured as described above, the predetermined distance H can be set to be the same as the predetermined distance Hm according to the fourth embodiment, and thus the third embodiment. The distance between the swivel frame 30 and the screw frame portion 48 can be minimized as compared with the above. And when the vertical position of the revolving frame 30 in the cargo hold 20 is the same position, it is possible to increase the storage height of the cargo C and increase the amount of cargo loaded in the cargo hold 20. It becomes.

  As described above, the distance CL3 (or the distance CLr) is maintained substantially constant even when the distance between the turning frame 30 and the screw frame portion 48 is changed, so that the clamp arm portion 81 of the frame lock device 80 is maintained. When the lock is in the closed state, the clamped portion 89a of the locking hardware 89 can be satisfactorily clamped and securely locked. At the same time, even if a control position shift occurs when the suspension wire 34 is wound up by the winch 35 at the predetermined distance Hm, the clamp arm portion 81 of the frame lock device 80 and the clamped portion 89a of the locking hardware 89 This embodiment is superior to the fourth embodiment in that it can be safely locked without causing a collision contact.

  In the above-described embodiment, a case where the cargo hold 20 is cylindrical has been described as a preferable example. However, the cylinder in the present invention includes a cylinder, an elliptic cylinder, a polygonal cylinder, and the like.

  Moreover, the center part (position of a central axis) of the cargo hold 20 in the present invention indicates a virtual circle inside the cargo hold 20 and indicates the center of the virtual circle. The preferred center position is the center of a circle when the cargo hold 20 is cylindrical, and is as follows when the cargo hold 20 is other than a cylindrical shape (in the case of a polygon or an ellipse). That is, when the shape of the cargo hold 20 is other than the cylindrical shape (a) the shape of the cargo hold 20 is a rectangular shape or a polygonal cylindrical shape whose opposite sides are parallel to each other, the intersection of the lines connecting each side and the midpoint of the opposite side The center. In addition, when the shape of the cargo hold 20 is other than the cylindrical shape and other than the above (a), a circle having the maximum diameter that is inscribed in at least two places on the cylindrical wall surface and does not intersect with the wall surface is assumed. The center is the center of the cargo hold 20. Note that when a plurality of circles are hypothesized depending on conditions, any one of them may be selected, and the center of the selected virtual circle may be the center of the cargo hold 20.

DESCRIPTION OF SYMBOLS 1 Cargo ship 10 Horizontal screw type silo 11 Turning cylinder 12 Horizontal screw conveyor 13 Telescopic chute 14 Center column 20 Cargo hold 30 Turning frame 31 Traveling wheel 39 Turning device 34 Suspension wire 40 Horizontal conveyance device 41, 42 Horizontal screw 43, 44 Drive Machine 45 Rotating roller unit 48 Screw frame part 50 Rail clamp device 51 Clamp arm part 52 Spring-back hydraulic cylinder 60 Rotating frame lock device 69 Locking hardware 70, 80 Frame lock device

Claims (18)

A cargo hold having a cargo supply port at the top and a cylindrical wall surface inside to accommodate a powdery, granular, lump or pellet shaped cargo,
A turning device having a turning frame disposed at an upper position inside the cargo hold and driven to turn about a central axis of the cargo hold and having a tip extending toward the wall surface;
The central axis is the pivot axis and is suspended from the pivot frame via a suspension wire, and is pivoted by following the pivoting motion of the pivot frame, and is moved up and down by the winding wire winding or feeding operation. A screw-type horizontal conveying device that conveys and collects the cargo in a horizontal direction between the center of the cargo hold and the wall surface,
In a horizontal screw silo that discharges the cargo collected by the horizontal conveying device to the outside of the cargo hold,
The horizontal transfer device is:
A screw frame extending from the central axis toward the wall surface and suspended from the swivel frame;
The swiveling device or the horizontal conveying device is
A horizontal screw silo comprising: a fixing device that is provided on one of the swivel frame and the screw frame portion and engages and fixes a fixing portion provided on either one of them. It has a center column fixedly arranged so as to extend in the vertical direction at the center of the cargo hold, and the cargo from the horizontal conveying device is discharged to the outside of the cargo hold through the center column. The horizontal screw silo according to claim 1. The fixing device is
A first portion having a locked portion provided so as to extend toward one of the swivel frame and the screw frame portion and a pair of arm portions sandwiching the locked portion provided on the other. A clamp arm part and a first actuating part for opening and closing the first clamp arm part,
The horizontal screw silo according to claim 2, wherein when the distance between the swivel frame and the screw frame part is within a predetermined range, the first clamp arm part is closed. 4. The horizontal screw type according to claim 3, wherein the first clamp arm portion or the locked portion includes a guide portion that guides the locked portion between the arm portions at a distal end of a pair of arm portions. silo. The swivel device
Wherein provided at an end portion of the wall surface side of the revolving frame, the rail portion of the annular shape is provided so as to substantially coincide with the fixed portion and the pivot axis of the pivot frame to the wall surface provided on the wall surface The horizontal screw silo according to claim 4, further comprising a turning restricting device that engages with at least one of the turning frames and restricts the turning motion of the turning frame. When the turning restricting device is engaged with the fixed part,
Wherein the fixed portion is protruded a predetermined portion of said wall,
The turning restricting device includes a second clamp arm portion having a pair of arm portions sandwiching the fixed portion at an end portion on the wall surface side of the turning frame, and a second clamp arm portion that opens and closes the second clamp arm portion. and a second operating portion, the second horizontal screw silo according to claim 5, wherein damping the pivoting movement of the pivoting frame by sandwiching the fixed portion by closing operation of the clamp arm portion . The turn restriction device, wherein the second center line between the arms of the clamp arm is said from the wall surface of the fixed portion so as to overlap with the center line toward the central axis second clamp arm at the time of braking operation The horizontal screw silo according to claim 6, wherein the part is closed and the braking position of the turning frame is corrected in accordance with the closing operation. The swivel device
Wherein provided at an end portion of the wall surface side of the revolving frame and the upper front sharp Lumpur unit has a traveling wheel rolling while supporting a portion of the load of the rotating frame, turning operation of the rotating frame A driving device
8. The braking device according to claim 5 , further comprising: a braking device configured to brake the turning operation of the turning frame by sandwiching the rail portion when the turning restriction device is engaged with the rail portion. The horizontal screw silo according to any one of the above. The braking device is:
A third clamp arm portion having a pair of arm portions sandwiching the rail portion, and a third operating portion for opening and closing the third clamp arm portion,
While sandwiching the rail portion by the closing operation of the third clamp arm portion,
The horizontal screw silo according to claim 8, wherein a center line between the arm portions of the third clamp arm portion is arranged so as to substantially coincide with a center line of the rail portion in a vertical direction. The fixing device is
It has a locked part provided in either one of the turning frame and the screw frame part so as to extend toward the other, and a pair of arm parts provided in either one and sandwiching the locked part from the horizontal direction. A fourth clamp arm part and a fourth actuating part for opening and closing the fourth clamp arm part,
When the distance between the swivel frame and the screw frame portion is within a predetermined range, the pair of arm portions extend and the fourth clamp arm portion is closed so as to sandwich the locked portion. The horizontal screw silo according to claim 2. The locked portion is disposed so as to extend in the vertical direction, and the tip end portion of the fourth clamp arm portion is disposed so as to be able to advance and retract along the longitudinal direction of the swivel frame and the screw frame portion. The horizontal screw type silo according to claim 10. The swivel device
Wherein provided at an end portion of the wall surface side of the revolving frame, the rail portion of the annular shape is provided so as to substantially coincide with the fixed portion and the pivot axis of the pivot frame to the wall surface provided on the wall surface The horizontal screw silo according to claim 11, further comprising a turning restricting device that engages with at least one of the turning frames to restrict a turning operation of the turning frame. When the turning restricting device is engaged with the fixed part,
Wherein the fixed portion is protruded a predetermined portion of said wall,
The turning restricting device includes a fifth clamp arm portion having a pair of arm portions sandwiching the fixed portion at an end portion on the wall surface side of the turning frame, and a fifth clamp arm portion that opens and closes the fifth clamp arm portion. has 5 an actuating portion of said fifth horizontal screw silo according to claim 12, wherein damping the pivoting movement of the pivoting frame by sandwiching the fixed portion by closing operation of the clamp arm portion of . The turn restriction device, the fifth and the fifth clamp arm so that the center line between the arms of the clamp arm portion overlaps the center line toward the central axis from the wall surface of the fixed portion of the braking operation The horizontal screw silo according to claim 13, wherein the part is closed and the braking position of the turning frame is corrected in accordance with the closing operation. The swivel device
Wherein provided at an end portion of the wall surface side of the revolving frame and the upper front sharp Lumpur unit has a traveling wheel rolling while supporting a portion of the load of the rotating frame, turning operation of the rotating frame A driving device
15. When the turning restricting device is engaged with the rail portion, the turning restricting device includes a braking device that sandwiches the rail portion and brakes the turning operation of the turning frame. The horizontal screw silo according to any one of the above. The braking device is:
A sixth clamp arm portion having a pair of arm portions sandwiching the rail portion, and a sixth operating portion for opening and closing the sixth clamp arm portion,
While sandwiching the rail portion by the closing operation of the sixth clamp arm portion,
The horizontal screw silo according to claim 15, wherein a center line between the arm portions of the sixth clamp arm portion is arranged so as to substantially coincide with a center line of the rail portion in a vertical direction.   A cargo carrier carrying the horizontal screw silo according to any one of claims 1 to 16 in a hold. The horizontal screw silo according to any one of claims 6, 7, 13 and 14 mounted to hold, the fixed portion is provided on the wall surface of the portion which becomes substantially 90 ° to the traveling direction of the ship Cargo carrier that has been.

Images